(a) Since loga a = 1, so log10 10 = 1.(b) log (2 + 3) = log 5 and log (2 x 3) = log 6 = log 2 + log 3log (2 + 3) log (2 x 3)(c) Since loga 1 = 0, so log10 1 = 0.(d) log (1 + 2 + 3) = log 6 = log (1 x 2 x 3) = log 1 + log 2 + log 3.So, (b) is incorrect
Aptitude
Topic: Logarithms
Which of the following statements is not correct?A.log10 10 = 1B.log (2 + 3) = log (2 x 3)C.log10 1 = 0D.log (1 + 2 + 3) = log 1 + log 2 + log 3
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If log 0.317=0.3332 and log 0.318=0.3364 then find log 0.319?(i)0.3396(ii)0.3369(iii)0.3368(iv)0.3338
Which of the following statements is not correct?A.log10 10 = 1B.log (2 + 3) = log (2 x 3)C.log10 1 = 0D.log (1 + 2 + 3) = log 1 + log 2 + log 3
If log 2 = 0.30103, the number of digits in 2^64 is:A.18 B.19C.20 D.21
